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Trovão NS, Nolting JM, Slemons RD, Nelson MI, Bowman AS. The Evolutionary Dynamics of Influenza A Viruses Circulating in Mallards in Duck Hunting Preserves in Maryland, USA. Microorganisms 2020; 9:microorganisms9010040. [PMID: 33375548 PMCID: PMC7823399 DOI: 10.3390/microorganisms9010040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022] Open
Abstract
Duck hunting preserves (DHP) have resident populations of farm-raised mallard ducks, which create potential foci for the evolution of novel influenza A viruses (IAVs). Through an eleven-year (2003–2013) IAV surveillance project in seven DHPs in Maryland, USA, we frequently identified IAVs in the resident, free-flying mallard ducks (5.8% of cloacal samples were IAV-positive). The IAV population had high genetic diversity, including 12 HA subtypes and 9 NA subtypes. By sequencing the complete genomes of 290 viruses, we determined that genetically diverse IAVs were introduced annually into DHP ducks, predominantly from wild birds in the Anatidae family that inhabit the Atlantic and Mississippi flyways. The relatively low viral gene flow observed out of DHPs suggests that raised mallards do not sustain long-term viral persistence nor do they serve as important sources of new viruses in wild birds. Overall, our findings indicate that DHPs offer reliable samples of the diversity of IAV subtypes, and could serve as regional sentinel sites that mimic the viral diversity found in local wild duck populations, which would provide a cost-efficient strategy for long-term IAV monitoring. Such monitoring could allow for early identification and characterization of viruses that threaten bird species of high economic and environmental interest.
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Affiliation(s)
- Nídia S. Trovão
- Division of International Epidemiology and Population Studies, Fogarty International Center, National Institutes of Health, Bethesda, MD 20814, USA; (N.S.T.); (M.I.N.)
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jacqueline M. Nolting
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA; (J.M.N.); (R.D.S.)
| | - Richard D. Slemons
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA; (J.M.N.); (R.D.S.)
| | - Martha I. Nelson
- Division of International Epidemiology and Population Studies, Fogarty International Center, National Institutes of Health, Bethesda, MD 20814, USA; (N.S.T.); (M.I.N.)
| | - Andrew S. Bowman
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH 43210, USA; (J.M.N.); (R.D.S.)
- Correspondence:
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2
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Densmore CL, Iwanowicz DD, Ottinger CA, Hindman LJ, Bessler AM, Iwanowicz LR, Prosser DJ, Whitbeck M, Driscoll CP. Molecular Detection of Avian Influenza Virus from Sediment Samples in Waterfowl Habitats on the Delmarva Peninsula, United States. Avian Dis 2019; 61:520-525. [PMID: 29337613 DOI: 10.1637/11687-060917-resnote.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Avian influenza viruses (AIV) affect many species of birds including waterfowl and may persist in sediment in aquatic habitats. Sediment samples were collected from two areas representative of prime migration and overwintering waterfowl habitat in Dorchester County, Maryland in the fall and winter of 2013-2014. Samples were screened for the presence of AIV via reverse transcriptase-quantitative PCR targeting the matrix gene. Although 13.6% of sediment samples were positive for the AIV matrix gene across all collection dates and locations, differences in detection were noted with location and collection season. Percentage of AIV-positive sediment samples recovered corresponded to trends in waterfowl abundance at collection sites both temporally and spatially. These findings provide further support for the assertion that the presence of AIV in the aquatic environment is likely affected by the total number, site-specific density, and array of waterfowl species.
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Affiliation(s)
- C L Densmore
- A United States Geological Survey, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430
| | - D D Iwanowicz
- A United States Geological Survey, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430
| | - C A Ottinger
- A United States Geological Survey, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430
| | - L J Hindman
- B Maryland Department of Natural Resources, 828B Airpax Road, Cambridge, MD 21613
| | - A M Bessler
- C Chesapeake Marshlands NWR Complex, 2145 Key Wallace Drive, Cambridge, MD 21613
| | - L R Iwanowicz
- A United States Geological Survey, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430
| | - D J Prosser
- D United States Geological Survey, Patuxent Wildlife Research Center, Beltsville Lab, 10300 Baltimore Avenue, Beltsville, MD 20705
| | - M Whitbeck
- C Chesapeake Marshlands NWR Complex, 2145 Key Wallace Drive, Cambridge, MD 21613
| | - C P Driscoll
- E Maryland Department of Natural Resources, Cooperative Oxford Laboratory, 904 South Morris Street, Oxford, MD 21654
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Xiao Y, Nolting JM, Sheng ZM, Bristol T, Qi L, Bowman AS, Taubenberger JK. Design and validation of a universal influenza virus enrichment probe set and its utility in deep sequence analysis of primary cloacal swab surveillance samples of wild birds. Virology 2018; 524:182-191. [PMID: 30212665 DOI: 10.1016/j.virol.2018.08.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/21/2018] [Accepted: 08/28/2018] [Indexed: 11/25/2022]
Abstract
Influenza virus infections in humans and animals are major public health concerns. In the current study, a set of universal influenza enrichment probes was developed to increase the sensitivity of sequence-based virus detection and characterization for all influenza viruses. This universal influenza enrichment probe set contains 46,953 120nt RNA biotin-labeled probes designed based on all available influenza viral sequences and it can be used to enrich for influenza sequences without prior knowledge of type or subtype. Marked enrichment was demonstrated in influenza A/H1N1, influenza B, and H1-to-H16 hemagglutinin plasmids spiked into human DNA and in cultured influenza A/H2N1 virus. Furthermore, enrichment effects and mixed influenza A virus infections were revealed in wild bird cloacal swab samples. Therefore, this universal influenza virus enrichment probe system can capture and enrich influenza viral sequences selectively and effectively in different samples, especially ones with degraded RNA or containing low amount of influenza RNA.
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Affiliation(s)
- Yongli Xiao
- Viral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, NIH/NIAID, 33 North Drive MSC 3203, Bethesda, MD 20892-3203, USA.
| | - Jacqueline M Nolting
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH, USA
| | - Zong-Mei Sheng
- Viral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, NIH/NIAID, 33 North Drive MSC 3203, Bethesda, MD 20892-3203, USA
| | - Tyler Bristol
- Viral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, NIH/NIAID, 33 North Drive MSC 3203, Bethesda, MD 20892-3203, USA
| | - Li Qi
- Viral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, NIH/NIAID, 33 North Drive MSC 3203, Bethesda, MD 20892-3203, USA
| | - Andrew S Bowman
- Department of Veterinary Preventive Medicine, The Ohio State University, Columbus, OH, USA
| | - Jeffery K Taubenberger
- Viral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, NIH/NIAID, 33 North Drive MSC 3203, Bethesda, MD 20892-3203, USA
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4
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Moulick A, Richtera L, Milosavljevic V, Cernei N, Haddad Y, Zitka O, Kopel P, Heger Z, Adam V. Advanced nanotechnologies in avian influenza: Current status and future trends - A review. Anal Chim Acta 2017; 983:42-53. [PMID: 28811028 PMCID: PMC7094654 DOI: 10.1016/j.aca.2017.06.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/24/2017] [Accepted: 06/26/2017] [Indexed: 02/04/2023]
Abstract
In the last decade, the control of avian influenza virus has experienced many difficulties, which have caused major global agricultural problems that have also led to public health consequences. Conventional biochemical methods are not sufficient to detect and control agricultural pathogens in the field due to the growing demand for food and subsidiary products; thus, studies aiming to develop potent alternatives to conventional biochemical methods are urgently needed. In this review, emerging detection systems, their applicability to diagnostics, and their therapeutic possibilities in view of nanotechnology are discussed. Nanotechnology-based sensors are used for rapid, sensitive and cost-effective diagnostics of agricultural pathogens. The application of different nanomaterials promotes interactions between these materials and the virus, which enables researchers to construct portable electroanalytical biosensing analyser that should effectively detect the influenza virus. The present review will provide insights into the guidelines for future experiments to develop better techniques to detect and control influenza viruses.
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Affiliation(s)
- Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic.
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Ali R, Blackburn RM, Kozlakidis Z. Next-Generation Sequencing and Influenza Virus: A Short Review of the Published Implementation Attempts. HAYATI JOURNAL OF BIOSCIENCES 2016. [DOI: 10.1016/j.hjb.2016.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
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Mathieu C, Moreno V, Pedersen J, Jeria J, Agredo M, Gutiérrez C, García A, Vásquez M, Avalos P, Retamal P. Avian Influenza in wild birds from Chile, 2007-2009. Virus Res 2015; 199:42-5. [PMID: 25602438 DOI: 10.1016/j.virusres.2015.01.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 01/06/2015] [Accepted: 01/10/2015] [Indexed: 11/25/2022]
Abstract
Aquatic and migratory birds, the main reservoir hosts of avian influenza viruses including those with high pathogenic potential, are the wildlife species with the highest risk for viral dissemination across countries and continents. In 2002, the Chilean poultry industry was affected with a highly pathogenic avian influenza strain, which created economic loss and triggered the establishment of a surveillance program in wild birds. This effort consisted of periodic samplings of sick or suspicious animals found along the coast and analyses with standardized techniques for detection of influenza A virus. The aim of this work is to report the detection of three avian influenza strains (H13N2, H5N9, H13N9) in gulls from Chile between 2007-2009, which nucleotide sequences showed highest similitudes to viruses detected in wild birds from North America. These results suggest a dissemination route for influenza viruses along the coasts of Americas. Migratory and synanthropic behaviors of birds included in this study support continued monitoring of avian influenza viruses isolated from wild birds in The Americas and the establishment of biosecurity practices in farms.
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Affiliation(s)
- Christian Mathieu
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Valentina Moreno
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Janice Pedersen
- Avian Section Diagnostic Virology Laboratory, National Veterinary Services Laboratories Ames, Iowa 50010
| | - Julissa Jeria
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Michel Agredo
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Cristian Gutiérrez
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Alfonso García
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Marcela Vásquez
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Patricia Avalos
- Servicio Agrícola y Ganadero de Chile (SAG), Ruta 68 Km 22, Pudahuel, Santiago de Chile
| | - Patricio Retamal
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Av. Sta Rosa 11735, La Pintana, Santiago, Chile.
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7
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Determining the phylogenetic and phylogeographic origin of highly pathogenic avian influenza (H7N3) in Mexico. PLoS One 2014; 9:e107330. [PMID: 25226523 PMCID: PMC4165766 DOI: 10.1371/journal.pone.0107330] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 08/16/2014] [Indexed: 01/03/2023] Open
Abstract
Highly pathogenic (HP) avian influenza virus (AIV) H7N3 outbreaks occurred 3 times in the Americas in the past 10 years and caused severe economic loss in the affected regions. In June/July 2012, new HP H7N3 outbreaks occurred at commercial farms in Jalisco, Mexico. Outbreaks continued to be identified in neighbouring states in Mexico till August 2013. To explore the origin of this outbreak, time resolved phylogenetic trees were generated from the eight segments of full-length AIV sequences in North America using BEAST. Location, subtype, avian host species and pathogenicity were modelled as discrete traits upon the trees using continuous time Markov chains. A further joint analysis among segments was performed using a hierarchical phylogenetic model (HPM) which allowed trait rates (location, subtype, host species) to be jointly inferred across different segments. The complete spatial diffusion process was visualised through virtual globe software. Our result indicated the Mexico HP H7N3 originated from the large North America low pathogenicity AIV pool through complicated reassortment events. Different segments were contributed by wild waterfowl from different N. American flyways. Five of the eight segments (HA, NA, NP, M, NS) were introduced from wild birds migrating along the central North American flyway, and PB2, PB1 and PA were introduced via the western North American flyway. These results highlight a potential role for Mexico as a hotspot of virus reassortment as it is where wild birds from different migration routes mix during the winter.
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8
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Cunha MV, Inácio J, Freimanis G, Fusaro A, Granberg F, Höper D, King DP, Monne I, Orton R, Rosseel T. Next-generation sequencing in veterinary medicine: how can the massive amount of information arising from high-throughput technologies improve diagnosis, control, and management of infectious diseases? Methods Mol Biol 2014; 1247:415-36. [PMID: 25399113 PMCID: PMC7123048 DOI: 10.1007/978-1-4939-2004-4_30] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The development of high-throughput molecular technologies and associated bioinformatics has dramatically changed the capacities of scientists to produce, handle, and analyze large amounts of genomic, transcriptomic, and proteomic data. A clear example of this step-change is represented by the amount of DNA sequence data that can be now produced using next-generation sequencing (NGS) platforms. Similarly, recent improvements in protein and peptide separation efficiencies and highly accurate mass spectrometry have promoted the identification and quantification of proteins in a given sample. These advancements in biotechnology have increasingly been applied to the study of animal infectious diseases and are beginning to revolutionize the way that biological and evolutionary processes can be studied at the molecular level. Studies have demonstrated the value of NGS technologies for molecular characterization, ranging from metagenomic characterization of unknown pathogens or microbial communities to molecular epidemiology and evolution of viral quasispecies. Moreover, high-throughput technologies now allow detailed studies of host-pathogen interactions at the level of their genomes (genomics), transcriptomes (transcriptomics), or proteomes (proteomics). Ultimately, the interaction between pathogen and host biological networks can be questioned by analytically integrating these levels (integrative OMICS and systems biology). The application of high-throughput biotechnology platforms in these fields and their typical low-cost per information content has revolutionized the resolution with which these processes can now be studied. The aim of this chapter is to provide a current and prospective view on the opportunities and challenges associated with the application of massive parallel sequencing technologies to veterinary medicine, with particular focus on applications that have a potential impact on disease control and management.
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Affiliation(s)
- Mónica V. Cunha
- Instituto Nacional de Investigação Agrária e Veterinária, IP and Centro de Biologia Ambiental, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - João Inácio
- Instituto Nacional de Investigação Agrária e Veterinária, IP, Lisboa, Portugal and School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
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9
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Quiñones-Mateu ME, Avila S, Reyes-Teran G, Martinez MA. Deep sequencing: becoming a critical tool in clinical virology. J Clin Virol 2014; 61:9-19. [PMID: 24998424 DOI: 10.1016/j.jcv.2014.06.013] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/12/2014] [Accepted: 06/14/2014] [Indexed: 02/07/2023]
Abstract
Population (Sanger) sequencing has been the standard method in basic and clinical DNA sequencing for almost 40 years; however, next-generation (deep) sequencing methodologies are now revolutionizing the field of genomics, and clinical virology is no exception. Deep sequencing is highly efficient, producing an enormous amount of information at low cost in a relatively short period of time. High-throughput sequencing techniques have enabled significant contributions to multiples areas in virology, including virus discovery and metagenomics (viromes), molecular epidemiology, pathogenesis, and studies of how viruses to escape the host immune system and antiviral pressures. In addition, new and more affordable deep sequencing-based assays are now being implemented in clinical laboratories. Here, we review the use of the current deep sequencing platforms in virology, focusing on three of the most studied viruses: human immunodeficiency virus (HIV), hepatitis C virus (HCV), and influenza virus.
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Affiliation(s)
- Miguel E Quiñones-Mateu
- University Hospital Translational Laboratory, University Hospitals Case Medical Center, Cleveland, OH, USA; Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Santiago Avila
- Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico; Centro de Investigaciones en Enfermedades Infecciosas, Mexico City, Mexico
| | - Gustavo Reyes-Teran
- Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico; Centro de Investigaciones en Enfermedades Infecciosas, Mexico City, Mexico
| | - Miguel A Martinez
- Fundació irsicaixa, Universitat Autònoma de Barcelona, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
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10
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Abdelwhab EM, Veits J, Mettenleiter TC. Prevalence and control of H7 avian influenza viruses in birds and humans. Epidemiol Infect 2014; 142:896-920. [PMID: 24423384 PMCID: PMC9151109 DOI: 10.1017/s0950268813003324] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 11/21/2013] [Accepted: 12/04/2013] [Indexed: 01/20/2023] Open
Abstract
The H7 subtype HA gene has been found in combination with all nine NA subtype genes. Most exhibit low pathogenicity and only rarely high pathogenicity in poultry (and humans). During the past few years infections of poultry and humans with H7 subtypes have increased markedly. This review summarizes the emergence of avian influenza virus H7 subtypes in birds and humans, and the possibilities of its control in poultry. All H7Nx combinations were reported from wild birds, the natural reservoir of the virus. Geographically, the most prevalent subtype is H7N7, which is endemic in wild birds in Europe and was frequently reported in domestic poultry, whereas subtype H7N3 is mostly isolated from the Americas. In humans, mild to fatal infections were caused by subtypes H7N2, H7N3, H7N7 and H7N9. While infections of humans have been associated mostly with exposure to domestic poultry, infections of poultry have been linked to wild birds or live-bird markets. Generally, depopulation of infected poultry was the main control tool; however, inactivated vaccines were also used. In contrast to recent cases caused by subtype H7N9, human infections were usually self-limiting and rarely required antiviral medication. Close genetic and antigenic relatedness of H7 viruses of different origins may be helpful in development of universal vaccines and diagnostics for both animals and humans. Due to the wide spread of H7 viruses and their zoonotic importance more research is required to better understand the epidemiology, pathobiology and virulence determinants of these viruses and to develop improved control tools.
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Affiliation(s)
- E M Abdelwhab
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Molecular Biology, Greifswald - Insel Riems, Germany
| | - J Veits
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Molecular Biology, Greifswald - Insel Riems, Germany
| | - T C Mettenleiter
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Molecular Biology, Greifswald - Insel Riems, Germany
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11
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Pathogenesis, transmissibility, and ocular tropism of a highly pathogenic avian influenza A (H7N3) virus associated with human conjunctivitis. J Virol 2013; 87:5746-54. [PMID: 23487452 DOI: 10.1128/jvi.00154-13] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
H7 subtype influenza A viruses, responsible for numerous outbreaks in land-based poultry in Europe and the Americas, have caused over 100 cases of confirmed or presumed human infection over the last decade. The emergence of a highly pathogenic avian influenza H7N3 virus in poultry throughout the state of Jalisco, Mexico, resulting in two cases of human infection, prompted us to examine the virulence of this virus (A/Mexico/InDRE7218/2012 [MX/7218]) and related avian H7 subtype viruses in mouse and ferret models. Several high- and low-pathogenicity H7N3 and H7N9 viruses replicated efficiently in the respiratory tract of mice without prior adaptation following intranasal inoculation, but only MX/7218 virus caused lethal disease in this species. H7N3 and H7N9 viruses were also detected in the mouse eye following ocular inoculation. Virus from both H7N3 and H7N9 subtypes replicated efficiently in the upper and lower respiratory tracts of ferrets; however, only MX/7218 virus infection caused clinical signs and symptoms and was capable of transmission to naive ferrets in a direct-contact model. Similar to other highly pathogenic H7 viruses, MX/7218 replicated to high titers in human bronchial epithelial cells, yet it downregulated numerous genes related to NF-κB-mediated signaling transduction. These findings indicate that the recently isolated North American lineage H7 subtype virus associated with human conjunctivitis is capable of causing severe disease in mice and spreading to naive-contact ferrets, while concurrently retaining the ability to replicate within ocular tissue and allowing the eye to serve as a portal of entry.
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12
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Dugan VG, Saira K, Ghedin E. Large-scale sequencing and the natural history of model human RNA viruses. Future Virol 2012; 7:563-573. [PMID: 23682295 DOI: 10.2217/fvl.12.45] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
RNA virus exploration within the field of medical virology has greatly benefited from technological developments in genomics, deepening our understanding of viral dynamics and emergence. Large-scale first-generation technology sequencing projects have expedited molecular epidemiology studies at an unprecedented scale for two pathogenic RNA viruses chosen as models: influenza A virus and dengue. Next-generation sequencing approaches are now leading to a more in-depth analysis of virus genetic diversity, which is greater for RNA than DNA viruses because of high replication rates and the absence of proofreading activity of the RNA-dependent RNA polymerase. In the field of virus discovery, technological advancements and metagenomic approaches are expanding the catalogs of novel viruses by facilitating our probing into the RNA virus world.
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Affiliation(s)
- Vivien G Dugan
- Viral Genomics, J Craig Venter Institute, Rockville, MD, USA
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13
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Van Borm S, Rosseel T, Vangeluwe D, Vandenbussche F, van den Berg T, Lambrecht B. Phylogeographic analysis of avian influenza viruses isolated from Charadriiformes in Belgium confirms intercontinental reassortment in gulls. Arch Virol 2012; 157:1509-22. [PMID: 22580556 DOI: 10.1007/s00705-012-1323-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 03/22/2012] [Indexed: 11/28/2022]
Abstract
Nine influenza viruses isolated from gulls and shorebirds in Belgium (2008-2010), including H3N8, H5N2, H6N1, H11N9, H13N6, H13N8, and H16N3 subtypes, were targeted using random amplification and next-generation sequencing. The gene segments of these viruses segregated into three phylogeographic lineage types: (1) segments circulating in waterfowl in Eurasia with sporadic introduction in other species and in the Americas ("Eurasian avian"), (2) segments circulating in American waterfowl with sporadic introduction to other species and regions ("American avian"), and (3) segments circulating exclusively in gulls and shorebirds and having increased connectivity between the two hemispheres ("Charadriiformes specific"). Notably, an H6N1 and an H5N2 isolated from L. argentatus had mainly Eurasian avian genes but shared a matrix segment of American avian origin (first documentation in European gulls of transhemispheric reassortment). These data support the growing evidence of an important role of Charadriiformes birds in the dynamic nature of avian influenza ecology.
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Affiliation(s)
- Steven Van Borm
- Department of Virology, Veterinary and Agrochemical Research Center, Groeselenbergstraat 99, 1180 Uccle, Belgium.
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González-Reiche AS, Morales-Betoulle ME, Alvarez D, Betoulle JL, Müller ML, Sosa SM, Perez DR. Influenza a viruses from wild birds in Guatemala belong to the North American lineage. PLoS One 2012; 7:e32873. [PMID: 22427902 PMCID: PMC3302778 DOI: 10.1371/journal.pone.0032873] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 02/01/2012] [Indexed: 12/18/2022] Open
Abstract
The role wild bird species play in the transmission and ecology of avian influenza virus (AIV) is well established; however, there are significant gaps in our understanding of the worldwide distribution of these viruses, specifically about the prevalence and/or significance of AIV in Central and South America. As part of an assessment of the ecology of AIV in Guatemala, we conducted active surveillance in wild birds on the Pacific and Atlantic coasts. Cloacal and tracheal swab samples taken from resident and migratory wild birds were collected from February 2007 to January 2010.1913 samples were collected and virus was detected by real time RT-PCR (rRT-PCR) in 28 swab samples from ducks (Anas discors). Virus isolation was attempted for these positive samples, and 15 isolates were obtained from the migratory duck species Blue-winged teal. The subtypes identified included H7N9, H11N2, H3N8, H5N3, H8N4, and H5N4. Phylogenetic analysis of the viral sequences revealed that AIV isolates are highly similar to viruses from the North American lineage suggesting that bird migration dictates the ecology of these viruses in the Guatemalan bird population.
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Affiliation(s)
- Ana S. González-Reiche
- Department of Veterinary Medicine, University of Maryland College Park, and Virginia-Maryland Regional College of Veterinary Medicine, College Park, Maryland, United States of America
- Laboratorio de Ecología de Arbovirus y Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), Guatemala City, Guatemala
- * E-mail: (ASG); (DRP)
| | - María E. Morales-Betoulle
- Laboratorio de Ecología de Arbovirus y Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), Guatemala City, Guatemala
| | - Danilo Alvarez
- Laboratorio de Ecología de Arbovirus y Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), Guatemala City, Guatemala
| | - Jean-Luc Betoulle
- Laboratorio de Ecología de Arbovirus y Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), Guatemala City, Guatemala
- Fundación Para el Ecodesarrollo y la Conservación (FUNDAECO), Guatemala City, Guatemala
| | - Maria L. Müller
- Laboratorio de Ecología de Arbovirus y Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), Guatemala City, Guatemala
| | - Silvia M. Sosa
- Laboratorio de Ecología de Arbovirus y Virus Zoonóticos, Centro de Estudios en Salud, Universidad del Valle de Guatemala (CES-UVG), Guatemala City, Guatemala
| | - Daniel R. Perez
- Department of Veterinary Medicine, University of Maryland College Park, and Virginia-Maryland Regional College of Veterinary Medicine, College Park, Maryland, United States of America
- * E-mail: (ASG); (DRP)
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